263028401 has 8 divisors (see below), whose sum is σ = 270102504. Its totient is φ = 256043520.

The previous prime is 263028383. The next prime is 263028421. The reversal of 263028401 is 104820362.

It can be written as a sum of positive squares in 4 ways, for example, as 3045025 + 259983376 = 1745^2 + 16124^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263028401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263028421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16310 + ... + 28143.

It is an arithmetic number, because the mean of its divisors is an integer number (33762813).

Almost surely, 2^263028401 is an apocalyptic number.

It is an amenable number.

263028401 is a deficient number, since it is larger than the sum of its proper divisors (7074103).

263028401 is an equidigital number, since it uses as much as digits as its factorization.

263028401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44611.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 263028401 is about 16218.1503569303. The cubic root of 263028401 is about 640.7189195032.

Adding to 263028401 its reverse (104820362), we get a palindrome (367848763).

The spelling of 263028401 in words is "two hundred sixty-three million, twenty-eight thousand, four hundred one".